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Finding the Fourth Proportional to 155,459.84, 214,535.04 and 88,392.32

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Solution

The fourth proportional to 155,459.84, 214,535.04 and 88,392.32 is: 121,981.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,459.84 : 214,535.04 = 88,392.32 : x
  2. Step 2: Convert to fraction form
    155,459.84/214,535.04 = 88,392.32/x
  3. Step 3: Cross multiply
    155,459.84x = 214,535.04 × 88,392.32
  4. Step 4: Simplify right side
    155,459.84x = 18,963,249,906.89
  5. Step 5: Solve for x
    x = 18,963,249,906.89/155,459.84
  6. Step 6: Final answer
    x = 121,981.66

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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.