Home / 151,019.85-208,384.07-87,363.57

Finding the Fourth Proportional to 151,019.85, 208,384.07 and 87,363.57

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Solution

The fourth proportional to 151,019.85, 208,384.07 and 87,363.57 is: 120,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,019.85 : 208,384.07 = 87,363.57 : x
  2. Step 2: Convert to fraction form
    151,019.85/208,384.07 = 87,363.57/x
  3. Step 3: Cross multiply
    151,019.85x = 208,384.07 × 87,363.57
  4. Step 4: Simplify right side
    151,019.85x = 18,205,175,849.51
  5. Step 5: Solve for x
    x = 18,205,175,849.51/151,019.85
  6. Step 6: Final answer
    x = 120,548.23

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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.