Home / 153,926.97-212,417.21-85,945.11

Finding the Fourth Proportional to 153,926.97, 212,417.21 and 85,945.11

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Solution

The fourth proportional to 153,926.97, 212,417.21 and 85,945.11 is: 118,603.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,926.97 : 212,417.21 = 85,945.11 : x
  2. Step 2: Convert to fraction form
    153,926.97/212,417.21 = 85,945.11/x
  3. Step 3: Cross multiply
    153,926.97x = 212,417.21 × 85,945.11
  4. Step 4: Simplify right side
    153,926.97x = 18,256,220,479.34
  5. Step 5: Solve for x
    x = 18,256,220,479.34/153,926.97
  6. Step 6: Final answer
    x = 118,603.13

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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.