Home / 153,926.91-212,417.12-85,945.04

Finding the Fourth Proportional to 153,926.91, 212,417.12 and 85,945.04

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Solution

The fourth proportional to 153,926.91, 212,417.12 and 85,945.04 is: 118,603.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,926.91 : 212,417.12 = 85,945.04 : x
  2. Step 2: Convert to fraction form
    153,926.91/212,417.12 = 85,945.04/x
  3. Step 3: Cross multiply
    153,926.91x = 212,417.12 × 85,945.04
  4. Step 4: Simplify right side
    153,926.91x = 18,256,197,976.40
  5. Step 5: Solve for x
    x = 18,256,197,976.40/153,926.91
  6. Step 6: Final answer
    x = 118,603.03

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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.