Home / 120,031.04-165,637.20-66,316.52

Finding the Fourth Proportional to 120,031.04, 165,637.20 and 66,316.52

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Solution

The fourth proportional to 120,031.04, 165,637.20 and 66,316.52 is: 91,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,031.04 : 165,637.20 = 66,316.52 : x
  2. Step 2: Convert to fraction form
    120,031.04/165,637.20 = 66,316.52/x
  3. Step 3: Cross multiply
    120,031.04x = 165,637.20 × 66,316.52
  4. Step 4: Simplify right side
    120,031.04x = 10,984,482,686.54
  5. Step 5: Solve for x
    x = 10,984,482,686.54/120,031.04
  6. Step 6: Final answer
    x = 91,513.68

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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.