Home / 156,810.40-235,215.60-51,615.70

Finding the Fourth Proportional to 156,810.40, 235,215.60 and 51,615.70

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Solution

The fourth proportional to 156,810.40, 235,215.60 and 51,615.70 is: 77,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,810.40 : 235,215.60 = 51,615.70 : x
  2. Step 2: Convert to fraction form
    156,810.40/235,215.60 = 51,615.70/x
  3. Step 3: Cross multiply
    156,810.40x = 235,215.60 × 51,615.70
  4. Step 4: Simplify right side
    156,810.40x = 12,140,817,844.92
  5. Step 5: Solve for x
    x = 12,140,817,844.92/156,810.40
  6. Step 6: Final answer
    x = 77,423.55

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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.