Home / 199,275.04-299,017.05-66,188.80

Finding the Fourth Proportional to 199,275.04, 299,017.05 and 66,188.80

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Solution

The fourth proportional to 199,275.04, 299,017.05 and 66,188.80 is: 99,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,275.04 : 299,017.05 = 66,188.80 : x
  2. Step 2: Convert to fraction form
    199,275.04/299,017.05 = 66,188.80/x
  3. Step 3: Cross multiply
    199,275.04x = 299,017.05 × 66,188.80
  4. Step 4: Simplify right side
    199,275.04x = 19,791,579,719.04
  5. Step 5: Solve for x
    x = 19,791,579,719.04/199,275.04
  6. Step 6: Final answer
    x = 99,317.91

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1.5x scale

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.