Home / 155,806.47-215,017.13-95,376.02

Finding the Fourth Proportional to 155,806.47, 215,017.13 and 95,376.02

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Solution

The fourth proportional to 155,806.47, 215,017.13 and 95,376.02 is: 131,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,806.47 : 215,017.13 = 95,376.02 : x
  2. Step 2: Convert to fraction form
    155,806.47/215,017.13 = 95,376.02/x
  3. Step 3: Cross multiply
    155,806.47x = 215,017.13 × 95,376.02
  4. Step 4: Simplify right side
    155,806.47x = 20,507,477,254.58
  5. Step 5: Solve for x
    x = 20,507,477,254.58/155,806.47
  6. Step 6: Final answer
    x = 131,621.47

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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.