Home / 100,430.05-150,646.11-25,550.23

Finding the Fourth Proportional to 100,430.05, 150,646.11 and 25,550.23

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Solution

The fourth proportional to 100,430.05, 150,646.11 and 25,550.23 is: 38,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,430.05 : 150,646.11 = 25,550.23 : x
  2. Step 2: Convert to fraction form
    100,430.05/150,646.11 = 25,550.23/x
  3. Step 3: Cross multiply
    100,430.05x = 150,646.11 × 25,550.23
  4. Step 4: Simplify right side
    100,430.05x = 3,849,041,878.12
  5. Step 5: Solve for x
    x = 3,849,041,878.12/100,430.05
  6. Step 6: Final answer
    x = 38,325.60

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Double scale
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1.5x scale

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.