Home / 187,058.19-280,587.29-68,678.31

Finding the Fourth Proportional to 187,058.19, 280,587.29 and 68,678.31

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Solution

The fourth proportional to 187,058.19, 280,587.29 and 68,678.31 is: 103,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,058.19 : 280,587.29 = 68,678.31 : x
  2. Step 2: Convert to fraction form
    187,058.19/280,587.29 = 68,678.31/x
  3. Step 3: Cross multiply
    187,058.19x = 280,587.29 × 68,678.31
  4. Step 4: Simplify right side
    187,058.19x = 19,270,260,541.29
  5. Step 5: Solve for x
    x = 19,270,260,541.29/187,058.19
  6. Step 6: Final answer
    x = 103,017.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.