Home / 141,421.96-195,161.70-77,763.16

Finding the Fourth Proportional to 141,421.96, 195,161.70 and 77,763.16

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Solution

The fourth proportional to 141,421.96, 195,161.70 and 77,763.16 is: 107,312.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,421.96 : 195,161.70 = 77,763.16 : x
  2. Step 2: Convert to fraction form
    141,421.96/195,161.70 = 77,763.16/x
  3. Step 3: Cross multiply
    141,421.96x = 195,161.70 × 77,763.16
  4. Step 4: Simplify right side
    141,421.96x = 15,176,390,502.97
  5. Step 5: Solve for x
    x = 15,176,390,502.97/141,421.96
  6. Step 6: Final answer
    x = 107,312.83

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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.