Home / 145,502.48-200,793.56-81,840.40

Finding the Fourth Proportional to 145,502.48, 200,793.56 and 81,840.40

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Solution

The fourth proportional to 145,502.48, 200,793.56 and 81,840.40 is: 112,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,502.48 : 200,793.56 = 81,840.40 : x
  2. Step 2: Convert to fraction form
    145,502.48/200,793.56 = 81,840.40/x
  3. Step 3: Cross multiply
    145,502.48x = 200,793.56 × 81,840.40
  4. Step 4: Simplify right side
    145,502.48x = 16,433,025,267.82
  5. Step 5: Solve for x
    x = 16,433,025,267.82/145,502.48
  6. Step 6: Final answer
    x = 112,939.83

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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.