Home / 148,011.52-204,280.32-139,014.40

Finding the Fourth Proportional to 148,011.52, 204,280.32 and 139,014.40

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Solution

The fourth proportional to 148,011.52, 204,280.32 and 139,014.40 is: 191,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,011.52 : 204,280.32 = 139,014.40 : x
  2. Step 2: Convert to fraction form
    148,011.52/204,280.32 = 139,014.40/x
  3. Step 3: Cross multiply
    148,011.52x = 204,280.32 × 139,014.40
  4. Step 4: Simplify right side
    148,011.52x = 28,397,906,116.61
  5. Step 5: Solve for x
    x = 28,397,906,116.61/148,011.52
  6. Step 6: Final answer
    x = 191,862.81

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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.