Home / 125,312.02-172,939.76-71,595.89

Finding the Fourth Proportional to 125,312.02, 172,939.76 and 71,595.89

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Solution

The fourth proportional to 125,312.02, 172,939.76 and 71,595.89 is: 98,807.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,312.02 : 172,939.76 = 71,595.89 : x
  2. Step 2: Convert to fraction form
    125,312.02/172,939.76 = 71,595.89/x
  3. Step 3: Cross multiply
    125,312.02x = 172,939.76 × 71,595.89
  4. Step 4: Simplify right side
    125,312.02x = 12,381,775,484.72
  5. Step 5: Solve for x
    x = 12,381,775,484.72/125,312.02
  6. Step 6: Final answer
    x = 98,807.56

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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.