Home / 145,502.18-200,820.60-91,079.66

Finding the Fourth Proportional to 145,502.18, 200,820.60 and 91,079.66

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Solution

The fourth proportional to 145,502.18, 200,820.60 and 91,079.66 is: 125,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,502.18 : 200,820.60 = 91,079.66 : x
  2. Step 2: Convert to fraction form
    145,502.18/200,820.60 = 91,079.66/x
  3. Step 3: Cross multiply
    145,502.18x = 200,820.60 × 91,079.66
  4. Step 4: Simplify right side
    145,502.18x = 18,290,671,969.00
  5. Step 5: Solve for x
    x = 18,290,671,969.00/145,502.18
  6. Step 6: Final answer
    x = 125,707.20

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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.