Home / 121,643.61-182,475.18-42,775.53

Finding the Fourth Proportional to 121,643.61, 182,475.18 and 42,775.53

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Solution

The fourth proportional to 121,643.61, 182,475.18 and 42,775.53 is: 64,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,643.61 : 182,475.18 = 42,775.53 : x
  2. Step 2: Convert to fraction form
    121,643.61/182,475.18 = 42,775.53/x
  3. Step 3: Cross multiply
    121,643.61x = 182,475.18 × 42,775.53
  4. Step 4: Simplify right side
    121,643.61x = 7,805,472,536.35
  5. Step 5: Solve for x
    x = 7,805,472,536.35/121,643.61
  6. Step 6: Final answer
    x = 64,166.73

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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.