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Finding the Fourth Proportional to 150,802.88, 208,124.62 and 86,278.10

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Solution

The fourth proportional to 150,802.88, 208,124.62 and 86,278.10 is: 119,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,802.88 : 208,124.62 = 86,278.10 : x
  2. Step 2: Convert to fraction form
    150,802.88/208,124.62 = 86,278.10/x
  3. Step 3: Cross multiply
    150,802.88x = 208,124.62 × 86,278.10
  4. Step 4: Simplify right side
    150,802.88x = 17,956,596,776.82
  5. Step 5: Solve for x
    x = 17,956,596,776.82/150,802.88
  6. Step 6: Final answer
    x = 119,073.30

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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.