Home / 459,109.13-688,703.38-126,685.13

Finding the Fourth Proportional to 459,109.13, 688,703.38 and 126,685.13

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Solution

The fourth proportional to 459,109.13, 688,703.38 and 126,685.13 is: 190,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,109.13 : 688,703.38 = 126,685.13 : x
  2. Step 2: Convert to fraction form
    459,109.13/688,703.38 = 126,685.13/x
  3. Step 3: Cross multiply
    459,109.13x = 688,703.38 × 126,685.13
  4. Step 4: Simplify right side
    459,109.13x = 87,248,473,466.51
  5. Step 5: Solve for x
    x = 87,248,473,466.51/459,109.13
  6. Step 6: Final answer
    x = 190,038.64

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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.