Home / 150,857.29-208,159.93-87,182.80

Finding the Fourth Proportional to 150,857.29, 208,159.93 and 87,182.80

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Solution

The fourth proportional to 150,857.29, 208,159.93 and 87,182.80 is: 120,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,857.29 : 208,159.93 = 87,182.80 : x
  2. Step 2: Convert to fraction form
    150,857.29/208,159.93 = 87,182.80/x
  3. Step 3: Cross multiply
    150,857.29x = 208,159.93 × 87,182.80
  4. Step 4: Simplify right side
    150,857.29x = 18,147,964,068.49
  5. Step 5: Solve for x
    x = 18,147,964,068.49/150,857.29
  6. Step 6: Final answer
    x = 120,298.89

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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.