Home / 131,637.26-181,681.70-76,437.98

Finding the Fourth Proportional to 131,637.26, 181,681.70 and 76,437.98

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Solution

The fourth proportional to 131,637.26, 181,681.70 and 76,437.98 is: 105,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,637.26 : 181,681.70 = 76,437.98 : x
  2. Step 2: Convert to fraction form
    131,637.26/181,681.70 = 76,437.98/x
  3. Step 3: Cross multiply
    131,637.26x = 181,681.70 × 76,437.98
  4. Step 4: Simplify right side
    131,637.26x = 13,887,381,756.66
  5. Step 5: Solve for x
    x = 13,887,381,756.66/131,637.26
  6. Step 6: Final answer
    x = 105,497.35

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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.