Home / 124,637.76-172,071.12-82,319.52

Finding the Fourth Proportional to 124,637.76, 172,071.12 and 82,319.52

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Solution

The fourth proportional to 124,637.76, 172,071.12 and 82,319.52 is: 113,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,637.76 : 172,071.12 = 82,319.52 : x
  2. Step 2: Convert to fraction form
    124,637.76/172,071.12 = 82,319.52/x
  3. Step 3: Cross multiply
    124,637.76x = 172,071.12 × 82,319.52
  4. Step 4: Simplify right side
    124,637.76x = 14,164,812,004.26
  5. Step 5: Solve for x
    x = 14,164,812,004.26/124,637.76
  6. Step 6: Final answer
    x = 113,647.84

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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.