Home / 113,141.81-156,147.95-72,342.92

Finding the Fourth Proportional to 113,141.81, 156,147.95 and 72,342.92

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Solution

The fourth proportional to 113,141.81, 156,147.95 and 72,342.92 is: 99,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,141.81 : 156,147.95 = 72,342.92 : x
  2. Step 2: Convert to fraction form
    113,141.81/156,147.95 = 72,342.92/x
  3. Step 3: Cross multiply
    113,141.81x = 156,147.95 × 72,342.92
  4. Step 4: Simplify right side
    113,141.81x = 11,296,198,655.01
  5. Step 5: Solve for x
    x = 11,296,198,655.01/113,141.81
  6. Step 6: Final answer
    x = 99,841.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.