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Finding the Fourth Proportional to 150,637.65, 207,886.47 and 90,196.76

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Solution

The fourth proportional to 150,637.65, 207,886.47 and 90,196.76 is: 124,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,637.65 : 207,886.47 = 90,196.76 : x
  2. Step 2: Convert to fraction form
    150,637.65/207,886.47 = 90,196.76/x
  3. Step 3: Cross multiply
    150,637.65x = 207,886.47 × 90,196.76
  4. Step 4: Simplify right side
    150,637.65x = 18,750,684,664.17
  5. Step 5: Solve for x
    x = 18,750,684,664.17/150,637.65
  6. Step 6: Final answer
    x = 124,475.42

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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.