Home / 121,427.47-182,030.95-42,498.64

Finding the Fourth Proportional to 121,427.47, 182,030.95 and 42,498.64

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Solution

The fourth proportional to 121,427.47, 182,030.95 and 42,498.64 is: 63,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,427.47 : 182,030.95 = 42,498.64 : x
  2. Step 2: Convert to fraction form
    121,427.47/182,030.95 = 42,498.64/x
  3. Step 3: Cross multiply
    121,427.47x = 182,030.95 × 42,498.64
  4. Step 4: Simplify right side
    121,427.47x = 7,736,067,812.91
  5. Step 5: Solve for x
    x = 7,736,067,812.91/121,427.47
  6. Step 6: Final answer
    x = 63,709.37

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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.