Home / 145,215.02-200,373.21-90,760.77

Finding the Fourth Proportional to 145,215.02, 200,373.21 and 90,760.77

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Solution

The fourth proportional to 145,215.02, 200,373.21 and 90,760.77 is: 125,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,215.02 : 200,373.21 = 90,760.77 : x
  2. Step 2: Convert to fraction form
    145,215.02/200,373.21 = 90,760.77/x
  3. Step 3: Cross multiply
    145,215.02x = 200,373.21 × 90,760.77
  4. Step 4: Simplify right side
    145,215.02x = 18,186,025,825.11
  5. Step 5: Solve for x
    x = 18,186,025,825.11/145,215.02
  6. Step 6: Final answer
    x = 125,235.16

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Double scale
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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.