Home / 131,391.51-181,320.27-70,962.17

Finding the Fourth Proportional to 131,391.51, 181,320.27 and 70,962.17

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Solution

The fourth proportional to 131,391.51, 181,320.27 and 70,962.17 is: 97,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,391.51 : 181,320.27 = 70,962.17 : x
  2. Step 2: Convert to fraction form
    131,391.51/181,320.27 = 70,962.17/x
  3. Step 3: Cross multiply
    131,391.51x = 181,320.27 × 70,962.17
  4. Step 4: Simplify right side
    131,391.51x = 12,866,878,917.58
  5. Step 5: Solve for x
    x = 12,866,878,917.58/131,391.51
  6. Step 6: Final answer
    x = 97,927.78

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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.