Home / 156,685,659.20-235,065,813.60-75,840,142.40

Finding the Fourth Proportional to 156,685,659.20, 235,065,813.60 and 75,840,142.40

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Solution

The fourth proportional to 156,685,659.20, 235,065,813.60 and 75,840,142.40 is: 113,778,279.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685,659.20 : 235,065,813.60 = 75,840,142.40 : x
  2. Step 2: Convert to fraction form
    156,685,659.20/235,065,813.60 = 75,840,142.40/x
  3. Step 3: Cross multiply
    156,685,659.20x = 235,065,813.60 × 75,840,142.40
  4. Step 4: Simplify right side
    156,685,659.20x = 17,827,424,776,795,858
  5. Step 5: Solve for x
    x = 17,827,424,776,795,858/156,685,659.20
  6. Step 6: Final answer
    x = 113,778,279.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.