Home / 120,693.18-180,886.56-54,130.62

Finding the Fourth Proportional to 120,693.18, 180,886.56 and 54,130.62

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Solution

The fourth proportional to 120,693.18, 180,886.56 and 54,130.62 is: 81,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,693.18 : 180,886.56 = 54,130.62 : x
  2. Step 2: Convert to fraction form
    120,693.18/180,886.56 = 54,130.62/x
  3. Step 3: Cross multiply
    120,693.18x = 180,886.56 × 54,130.62
  4. Step 4: Simplify right side
    120,693.18x = 9,791,501,642.47
  5. Step 5: Solve for x
    x = 9,791,501,642.47/120,693.18
  6. Step 6: Final answer
    x = 81,127.22

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1.5x scale

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.