Home / 131,466.49-181,460.93-77,770.17

Finding the Fourth Proportional to 131,466.49, 181,460.93 and 77,770.17

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Solution

The fourth proportional to 131,466.49, 181,460.93 and 77,770.17 is: 107,344.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,466.49 : 181,460.93 = 77,770.17 : x
  2. Step 2: Convert to fraction form
    131,466.49/181,460.93 = 77,770.17/x
  3. Step 3: Cross multiply
    131,466.49x = 181,460.93 × 77,770.17
  4. Step 4: Simplify right side
    131,466.49x = 14,112,246,985.61
  5. Step 5: Solve for x
    x = 14,112,246,985.61/131,466.49
  6. Step 6: Final answer
    x = 107,344.82

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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.