Home / 109,156.68-163,735.02-39,031.74

Finding the Fourth Proportional to 109,156.68, 163,735.02 and 39,031.74

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Solution

The fourth proportional to 109,156.68, 163,735.02 and 39,031.74 is: 58,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156.68 : 163,735.02 = 39,031.74 : x
  2. Step 2: Convert to fraction form
    109,156.68/163,735.02 = 39,031.74/x
  3. Step 3: Cross multiply
    109,156.68x = 163,735.02 × 39,031.74
  4. Step 4: Simplify right side
    109,156.68x = 6,390,862,729.53
  5. Step 5: Solve for x
    x = 6,390,862,729.53/109,156.68
  6. Step 6: Final answer
    x = 58,547.61

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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.