Home / 115,421.16-158,925.90-98,387.22

Finding the Fourth Proportional to 115,421.16, 158,925.90 and 98,387.22

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Solution

The fourth proportional to 115,421.16, 158,925.90 and 98,387.22 is: 135,471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,421.16 : 158,925.90 = 98,387.22 : x
  2. Step 2: Convert to fraction form
    115,421.16/158,925.90 = 98,387.22/x
  3. Step 3: Cross multiply
    115,421.16x = 158,925.90 × 98,387.22
  4. Step 4: Simplify right side
    115,421.16x = 15,636,277,487.00
  5. Step 5: Solve for x
    x = 15,636,277,487.00/115,421.16
  6. Step 6: Final answer
    x = 135,471.50

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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.