Home / 145,275.93-200,445.53-84,811.95

Finding the Fourth Proportional to 145,275.93, 200,445.53 and 84,811.95

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Solution

The fourth proportional to 145,275.93, 200,445.53 and 84,811.95 is: 117,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,275.93 : 200,445.53 = 84,811.95 : x
  2. Step 2: Convert to fraction form
    145,275.93/200,445.53 = 84,811.95/x
  3. Step 3: Cross multiply
    145,275.93x = 200,445.53 × 84,811.95
  4. Step 4: Simplify right side
    145,275.93x = 17,000,175,844.02
  5. Step 5: Solve for x
    x = 17,000,175,844.02/145,275.93
  6. Step 6: Final answer
    x = 117,019.91

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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.