Home / 199,390.47-275,149.14-118,816.20

Finding the Fourth Proportional to 199,390.47, 275,149.14 and 118,816.20

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Solution

The fourth proportional to 199,390.47, 275,149.14 and 118,816.20 is: 163,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,390.47 : 275,149.14 = 118,816.20 : x
  2. Step 2: Convert to fraction form
    199,390.47/275,149.14 = 118,816.20/x
  3. Step 3: Cross multiply
    199,390.47x = 275,149.14 × 118,816.20
  4. Step 4: Simplify right side
    199,390.47x = 32,692,175,248.07
  5. Step 5: Solve for x
    x = 32,692,175,248.07/199,390.47
  6. Step 6: Final answer
    x = 163,960.57

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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.