Home / 124,898.59-172,355.78-71,200.90

Finding the Fourth Proportional to 124,898.59, 172,355.78 and 71,200.90

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Solution

The fourth proportional to 124,898.59, 172,355.78 and 71,200.90 is: 98,254.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,898.59 : 172,355.78 = 71,200.90 : x
  2. Step 2: Convert to fraction form
    124,898.59/172,355.78 = 71,200.90/x
  3. Step 3: Cross multiply
    124,898.59x = 172,355.78 × 71,200.90
  4. Step 4: Simplify right side
    124,898.59x = 12,271,886,656.20
  5. Step 5: Solve for x
    x = 12,271,886,656.20/124,898.59
  6. Step 6: Final answer
    x = 98,254.81

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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.