Home / 129,675.25-178,951.85-70,059.25

Finding the Fourth Proportional to 129,675.25, 178,951.85 and 70,059.25

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Solution

The fourth proportional to 129,675.25, 178,951.85 and 70,059.25 is: 96,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,675.25 : 178,951.85 = 70,059.25 : x
  2. Step 2: Convert to fraction form
    129,675.25/178,951.85 = 70,059.25/x
  3. Step 3: Cross multiply
    129,675.25x = 178,951.85 × 70,059.25
  4. Step 4: Simplify right side
    129,675.25x = 12,537,232,397.11
  5. Step 5: Solve for x
    x = 12,537,232,397.11/129,675.25
  6. Step 6: Final answer
    x = 96,681.77

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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.