Home / 119,144.48-164,420.55-65,430.65

Finding the Fourth Proportional to 119,144.48, 164,420.55 and 65,430.65

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Solution

The fourth proportional to 119,144.48, 164,420.55 and 65,430.65 is: 90,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,144.48 : 164,420.55 = 65,430.65 : x
  2. Step 2: Convert to fraction form
    119,144.48/164,420.55 = 65,430.65/x
  3. Step 3: Cross multiply
    119,144.48x = 164,420.55 × 65,430.65
  4. Step 4: Simplify right side
    119,144.48x = 10,758,143,459.86
  5. Step 5: Solve for x
    x = 10,758,143,459.86/119,144.48
  6. Step 6: Final answer
    x = 90,294.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.