Home / 125,561.08-187,870.98-74,774.32

Finding the Fourth Proportional to 125,561.08, 187,870.98 and 74,774.32

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Solution

The fourth proportional to 125,561.08, 187,870.98 and 74,774.32 is: 111,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,561.08 : 187,870.98 = 74,774.32 : x
  2. Step 2: Convert to fraction form
    125,561.08/187,870.98 = 74,774.32/x
  3. Step 3: Cross multiply
    125,561.08x = 187,870.98 × 74,774.32
  4. Step 4: Simplify right side
    125,561.08x = 14,047,924,777.23
  5. Step 5: Solve for x
    x = 14,047,924,777.23/125,561.08
  6. Step 6: Final answer
    x = 111,881.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.