Home / 131,807.79-181,895.25-71,378.46

Finding the Fourth Proportional to 131,807.79, 181,895.25 and 71,378.46

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Solution

The fourth proportional to 131,807.79, 181,895.25 and 71,378.46 is: 98,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,807.79 : 181,895.25 = 71,378.46 : x
  2. Step 2: Convert to fraction form
    131,807.79/181,895.25 = 71,378.46/x
  3. Step 3: Cross multiply
    131,807.79x = 181,895.25 × 71,378.46
  4. Step 4: Simplify right side
    131,807.79x = 12,983,402,826.32
  5. Step 5: Solve for x
    x = 12,983,402,826.32/131,807.79
  6. Step 6: Final answer
    x = 98,502.55

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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.