Home / 148,685.84-224,142.93-138,787.55

Finding the Fourth Proportional to 148,685.84, 224,142.93 and 138,787.55

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Solution

The fourth proportional to 148,685.84, 224,142.93 and 138,787.55 is: 209,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,685.84 : 224,142.93 = 138,787.55 : x
  2. Step 2: Convert to fraction form
    148,685.84/224,142.93 = 138,787.55/x
  3. Step 3: Cross multiply
    148,685.84x = 224,142.93 × 138,787.55
  4. Step 4: Simplify right side
    148,685.84x = 31,108,248,104.52
  5. Step 5: Solve for x
    x = 31,108,248,104.52/148,685.84
  6. Step 6: Final answer
    x = 209,221.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.