Home / 187,430.31-258,660.27-102,547.35

Finding the Fourth Proportional to 187,430.31, 258,660.27 and 102,547.35

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Solution

The fourth proportional to 187,430.31, 258,660.27 and 102,547.35 is: 141,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,430.31 : 258,660.27 = 102,547.35 : x
  2. Step 2: Convert to fraction form
    187,430.31/258,660.27 = 102,547.35/x
  3. Step 3: Cross multiply
    187,430.31x = 258,660.27 × 102,547.35
  4. Step 4: Simplify right side
    187,430.31x = 26,524,925,238.78
  5. Step 5: Solve for x
    x = 26,524,925,238.78/187,430.31
  6. Step 6: Final answer
    x = 141,518.87

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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.