Home / 123,255.64-170,095.02-72,304.92

Finding the Fourth Proportional to 123,255.64, 170,095.02 and 72,304.92

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Solution

The fourth proportional to 123,255.64, 170,095.02 and 72,304.92 is: 99,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,255.64 : 170,095.02 = 72,304.92 : x
  2. Step 2: Convert to fraction form
    123,255.64/170,095.02 = 72,304.92/x
  3. Step 3: Cross multiply
    123,255.64x = 170,095.02 × 72,304.92
  4. Step 4: Simplify right side
    123,255.64x = 12,298,706,813.50
  5. Step 5: Solve for x
    x = 12,298,706,813.50/123,255.64
  6. Step 6: Final answer
    x = 99,782.10

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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.