Home / 187,587.06-258,865.65-102,707.70

Finding the Fourth Proportional to 187,587.06, 258,865.65 and 102,707.70

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Solution

The fourth proportional to 187,587.06, 258,865.65 and 102,707.70 is: 141,734.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,587.06 : 258,865.65 = 102,707.70 : x
  2. Step 2: Convert to fraction form
    187,587.06/258,865.65 = 102,707.70/x
  3. Step 3: Cross multiply
    187,587.06x = 258,865.65 × 102,707.70
  4. Step 4: Simplify right side
    187,587.06x = 26,587,495,520.51
  5. Step 5: Solve for x
    x = 26,587,495,520.51/187,587.06
  6. Step 6: Final answer
    x = 141,734.17

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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.