Home / 131,291.32-181,182.54-74,701.48

Finding the Fourth Proportional to 131,291.32, 181,182.54 and 74,701.48

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Solution

The fourth proportional to 131,291.32, 181,182.54 and 74,701.48 is: 103,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,291.32 : 181,182.54 = 74,701.48 : x
  2. Step 2: Convert to fraction form
    131,291.32/181,182.54 = 74,701.48/x
  3. Step 3: Cross multiply
    131,291.32x = 181,182.54 × 74,701.48
  4. Step 4: Simplify right side
    131,291.32x = 13,534,603,888.16
  5. Step 5: Solve for x
    x = 13,534,603,888.16/131,291.32
  6. Step 6: Final answer
    x = 103,088.34

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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.