Home / 131,392.51-181,321.65-70,963.17

Finding the Fourth Proportional to 131,392.51, 181,321.65 and 70,963.17

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Solution

The fourth proportional to 131,392.51, 181,321.65 and 70,963.17 is: 97,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,392.51 : 181,321.65 = 70,963.17 : x
  2. Step 2: Convert to fraction form
    131,392.51/181,321.65 = 70,963.17/x
  3. Step 3: Cross multiply
    131,392.51x = 181,321.65 × 70,963.17
  4. Step 4: Simplify right side
    131,392.51x = 12,867,159,073.63
  5. Step 5: Solve for x
    x = 12,867,159,073.63/131,392.51
  6. Step 6: Final answer
    x = 97,929.17

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1.5x scale

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.