Home / 147,711.60-221,567.40-42,541.20

Finding the Fourth Proportional to 147,711.60, 221,567.40 and 42,541.20

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Solution

The fourth proportional to 147,711.60, 221,567.40 and 42,541.20 is: 63,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,711.60 : 221,567.40 = 42,541.20 : x
  2. Step 2: Convert to fraction form
    147,711.60/221,567.40 = 42,541.20/x
  3. Step 3: Cross multiply
    147,711.60x = 221,567.40 × 42,541.20
  4. Step 4: Simplify right side
    147,711.60x = 9,425,743,076.88
  5. Step 5: Solve for x
    x = 9,425,743,076.88/147,711.60
  6. Step 6: Final answer
    x = 63,811.80

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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.