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Finding the Fourth Proportional to 160,535.52, 221,445.90 and 103,948.11

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Solution

The fourth proportional to 160,535.52, 221,445.90 and 103,948.11 is: 143,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,535.52 : 221,445.90 = 103,948.11 : x
  2. Step 2: Convert to fraction form
    160,535.52/221,445.90 = 103,948.11/x
  3. Step 3: Cross multiply
    160,535.52x = 221,445.90 × 103,948.11
  4. Step 4: Simplify right side
    160,535.52x = 23,018,882,772.25
  5. Step 5: Solve for x
    x = 23,018,882,772.25/160,535.52
  6. Step 6: Final answer
    x = 143,388.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.