Home / 459,145.86-688,734.33-122,186.84

Finding the Fourth Proportional to 459,145.86, 688,734.33 and 122,186.84

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Solution

The fourth proportional to 459,145.86, 688,734.33 and 122,186.84 is: 183,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,145.86 : 688,734.33 = 122,186.84 : x
  2. Step 2: Convert to fraction form
    459,145.86/688,734.33 = 122,186.84/x
  3. Step 3: Cross multiply
    459,145.86x = 688,734.33 × 122,186.84
  4. Step 4: Simplify right side
    459,145.86x = 84,154,271,382.22
  5. Step 5: Solve for x
    x = 84,154,271,382.22/459,145.86
  6. Step 6: Final answer
    x = 183,284.40

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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.