Home / 187,478.64-258,719.84-101,437.36

Finding the Fourth Proportional to 187,478.64, 258,719.84 and 101,437.36

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Solution

The fourth proportional to 187,478.64, 258,719.84 and 101,437.36 is: 139,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,478.64 : 258,719.84 = 101,437.36 : x
  2. Step 2: Convert to fraction form
    187,478.64/258,719.84 = 101,437.36/x
  3. Step 3: Cross multiply
    187,478.64x = 258,719.84 × 101,437.36
  4. Step 4: Simplify right side
    187,478.64x = 26,243,857,549.22
  5. Step 5: Solve for x
    x = 26,243,857,549.22/187,478.64
  6. Step 6: Final answer
    x = 139,983.19

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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.