Home / 459,087.60-688,631.40-122,127.60

Finding the Fourth Proportional to 459,087.60, 688,631.40 and 122,127.60

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Solution

The fourth proportional to 459,087.60, 688,631.40 and 122,127.60 is: 183,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,087.60 : 688,631.40 = 122,127.60 : x
  2. Step 2: Convert to fraction form
    459,087.60/688,631.40 = 122,127.60/x
  3. Step 3: Cross multiply
    459,087.60x = 688,631.40 × 122,127.60
  4. Step 4: Simplify right side
    459,087.60x = 84,100,900,166.64
  5. Step 5: Solve for x
    x = 84,100,900,166.64/459,087.60
  6. Step 6: Final answer
    x = 183,191.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.