Home / 142,423.93-213,657.15-52,459.79

Finding the Fourth Proportional to 142,423.93, 213,657.15 and 52,459.79

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Solution

The fourth proportional to 142,423.93, 213,657.15 and 52,459.79 is: 78,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,423.93 : 213,657.15 = 52,459.79 : x
  2. Step 2: Convert to fraction form
    142,423.93/213,657.15 = 52,459.79/x
  3. Step 3: Cross multiply
    142,423.93x = 213,657.15 × 52,459.79
  4. Step 4: Simplify right side
    142,423.93x = 11,208,409,221.00
  5. Step 5: Solve for x
    x = 11,208,409,221.00/142,423.93
  6. Step 6: Final answer
    x = 78,697.51

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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.