Home / 125,087.64-172,630.08-82,572.36

Finding the Fourth Proportional to 125,087.64, 172,630.08 and 82,572.36

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Solution

The fourth proportional to 125,087.64, 172,630.08 and 82,572.36 is: 113,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,087.64 : 172,630.08 = 82,572.36 : x
  2. Step 2: Convert to fraction form
    125,087.64/172,630.08 = 82,572.36/x
  3. Step 3: Cross multiply
    125,087.64x = 172,630.08 × 82,572.36
  4. Step 4: Simplify right side
    125,087.64x = 14,254,473,112.59
  5. Step 5: Solve for x
    x = 14,254,473,112.59/125,087.64
  6. Step 6: Final answer
    x = 113,955.89

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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.