Home / 115,431.40-173,111.10-45,332.20

Finding the Fourth Proportional to 115,431.40, 173,111.10 and 45,332.20

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Solution

The fourth proportional to 115,431.40, 173,111.10 and 45,332.20 is: 67,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,431.40 : 173,111.10 = 45,332.20 : x
  2. Step 2: Convert to fraction form
    115,431.40/173,111.10 = 45,332.20/x
  3. Step 3: Cross multiply
    115,431.40x = 173,111.10 × 45,332.20
  4. Step 4: Simplify right side
    115,431.40x = 7,847,507,007.42
  5. Step 5: Solve for x
    x = 7,847,507,007.42/115,431.40
  6. Step 6: Final answer
    x = 67,984.16

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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.