Home / 121,188.61-181,865.95-42,302.83

Finding the Fourth Proportional to 121,188.61, 181,865.95 and 42,302.83

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Solution

The fourth proportional to 121,188.61, 181,865.95 and 42,302.83 is: 63,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,188.61 : 181,865.95 = 42,302.83 : x
  2. Step 2: Convert to fraction form
    121,188.61/181,865.95 = 42,302.83/x
  3. Step 3: Cross multiply
    121,188.61x = 181,865.95 × 42,302.83
  4. Step 4: Simplify right side
    121,188.61x = 7,693,444,365.64
  5. Step 5: Solve for x
    x = 7,693,444,365.64/121,188.61
  6. Step 6: Final answer
    x = 63,483.23

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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.