Home / 131,465.48-181,459.50-77,769.14

Finding the Fourth Proportional to 131,465.48, 181,459.50 and 77,769.14

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Solution

The fourth proportional to 131,465.48, 181,459.50 and 77,769.14 is: 107,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,465.48 : 181,459.50 = 77,769.14 : x
  2. Step 2: Convert to fraction form
    131,465.48/181,459.50 = 77,769.14/x
  3. Step 3: Cross multiply
    131,465.48x = 181,459.50 × 77,769.14
  4. Step 4: Simplify right side
    131,465.48x = 14,111,949,259.83
  5. Step 5: Solve for x
    x = 14,111,949,259.83/131,465.48
  6. Step 6: Final answer
    x = 107,343.38

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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.