Home / 151,000.07-208,380.23-83,018.20

Finding the Fourth Proportional to 151,000.07, 208,380.23 and 83,018.20

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Solution

The fourth proportional to 151,000.07, 208,380.23 and 83,018.20 is: 114,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,000.07 : 208,380.23 = 83,018.20 : x
  2. Step 2: Convert to fraction form
    151,000.07/208,380.23 = 83,018.20/x
  3. Step 3: Cross multiply
    151,000.07x = 208,380.23 × 83,018.20
  4. Step 4: Simplify right side
    151,000.07x = 17,299,350,674.14
  5. Step 5: Solve for x
    x = 17,299,350,674.14/151,000.07
  6. Step 6: Final answer
    x = 114,565.19

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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.