Home / 459,075.10-688,612.65-122,115.10

Finding the Fourth Proportional to 459,075.10, 688,612.65 and 122,115.10

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Solution

The fourth proportional to 459,075.10, 688,612.65 and 122,115.10 is: 183,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,075.10 : 688,612.65 = 122,115.10 : x
  2. Step 2: Convert to fraction form
    459,075.10/688,612.65 = 122,115.10/x
  3. Step 3: Cross multiply
    459,075.10x = 688,612.65 × 122,115.10
  4. Step 4: Simplify right side
    459,075.10x = 84,090,002,616.02
  5. Step 5: Solve for x
    x = 84,090,002,616.02/459,075.10
  6. Step 6: Final answer
    x = 183,172.65

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Similar ratio
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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.