Home / 125,888.04-173,686.31-71,431.20

Finding the Fourth Proportional to 125,888.04, 173,686.31 and 71,431.20

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Solution

The fourth proportional to 125,888.04, 173,686.31 and 71,431.20 is: 98,552.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,888.04 : 173,686.31 = 71,431.20 : x
  2. Step 2: Convert to fraction form
    125,888.04/173,686.31 = 71,431.20/x
  3. Step 3: Cross multiply
    125,888.04x = 173,686.31 × 71,431.20
  4. Step 4: Simplify right side
    125,888.04x = 12,406,621,189.72
  5. Step 5: Solve for x
    x = 12,406,621,189.72/125,888.04
  6. Step 6: Final answer
    x = 98,552.82

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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.