Home / 115,047.40-172,595.74-65,151.08

Finding the Fourth Proportional to 115,047.40, 172,595.74 and 65,151.08

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Solution

The fourth proportional to 115,047.40, 172,595.74 and 65,151.08 is: 97,740.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,047.40 : 172,595.74 = 65,151.08 : x
  2. Step 2: Convert to fraction form
    115,047.40/172,595.74 = 65,151.08/x
  3. Step 3: Cross multiply
    115,047.40x = 172,595.74 × 65,151.08
  4. Step 4: Simplify right side
    115,047.40x = 11,244,798,864.40
  5. Step 5: Solve for x
    x = 11,244,798,864.40/115,047.40
  6. Step 6: Final answer
    x = 97,740.57

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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.