Home / 121,581.48-182,390.52-42,681.84

Finding the Fourth Proportional to 121,581.48, 182,390.52 and 42,681.84

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Solution

The fourth proportional to 121,581.48, 182,390.52 and 42,681.84 is: 64,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,581.48 : 182,390.52 = 42,681.84 : x
  2. Step 2: Convert to fraction form
    121,581.48/182,390.52 = 42,681.84/x
  3. Step 3: Cross multiply
    121,581.48x = 182,390.52 × 42,681.84
  4. Step 4: Simplify right side
    121,581.48x = 7,784,762,992.16
  5. Step 5: Solve for x
    x = 7,784,762,992.16/121,581.48
  6. Step 6: Final answer
    x = 64,029.18

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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.