Home / 124,126.32-186,041.52-86,482.56

Finding the Fourth Proportional to 124,126.32, 186,041.52 and 86,482.56

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Solution

The fourth proportional to 124,126.32, 186,041.52 and 86,482.56 is: 129,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,126.32 : 186,041.52 = 86,482.56 : x
  2. Step 2: Convert to fraction form
    124,126.32/186,041.52 = 86,482.56/x
  3. Step 3: Cross multiply
    124,126.32x = 186,041.52 × 86,482.56
  4. Step 4: Simplify right side
    124,126.32x = 16,089,346,915.89
  5. Step 5: Solve for x
    x = 16,089,346,915.89/124,126.32
  6. Step 6: Final answer
    x = 129,620.75

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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.