Home / 131,087.58-180,975.51-86,505.18

Finding the Fourth Proportional to 131,087.58, 180,975.51 and 86,505.18

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Solution

The fourth proportional to 131,087.58, 180,975.51 and 86,505.18 is: 119,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,087.58 : 180,975.51 = 86,505.18 : x
  2. Step 2: Convert to fraction form
    131,087.58/180,975.51 = 86,505.18/x
  3. Step 3: Cross multiply
    131,087.58x = 180,975.51 × 86,505.18
  4. Step 4: Simplify right side
    131,087.58x = 15,655,319,068.14
  5. Step 5: Solve for x
    x = 15,655,319,068.14/131,087.58
  6. Step 6: Final answer
    x = 119,426.41

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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.