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Finding the Fourth Proportional to 150,054.58, 207,127.47 and 86,417.74

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Solution

The fourth proportional to 150,054.58, 207,127.47 and 86,417.74 is: 119,286.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,054.58 : 207,127.47 = 86,417.74 : x
  2. Step 2: Convert to fraction form
    150,054.58/207,127.47 = 86,417.74/x
  3. Step 3: Cross multiply
    150,054.58x = 207,127.47 × 86,417.74
  4. Step 4: Simplify right side
    150,054.58x = 17,899,487,849.32
  5. Step 5: Solve for x
    x = 17,899,487,849.32/150,054.58
  6. Step 6: Final answer
    x = 119,286.51

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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.