Home / 151,130.66-208,567.32-87,456.14

Finding the Fourth Proportional to 151,130.66, 208,567.32 and 87,456.14

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Solution

The fourth proportional to 151,130.66, 208,567.32 and 87,456.14 is: 120,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,130.66 : 208,567.32 = 87,456.14 : x
  2. Step 2: Convert to fraction form
    151,130.66/208,567.32 = 87,456.14/x
  3. Step 3: Cross multiply
    151,130.66x = 208,567.32 × 87,456.14
  4. Step 4: Simplify right side
    151,130.66x = 18,240,492,737.34
  5. Step 5: Solve for x
    x = 18,240,492,737.34/151,130.66
  6. Step 6: Final answer
    x = 120,693.53

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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.