Home / 153,927.54-212,417.98-85,945.66

Finding the Fourth Proportional to 153,927.54, 212,417.98 and 85,945.66

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Solution

The fourth proportional to 153,927.54, 212,417.98 and 85,945.66 is: 118,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,927.54 : 212,417.98 = 85,945.66 : x
  2. Step 2: Convert to fraction form
    153,927.54/212,417.98 = 85,945.66/x
  3. Step 3: Cross multiply
    153,927.54x = 212,417.98 × 85,945.66
  4. Step 4: Simplify right side
    153,927.54x = 18,256,403,486.97
  5. Step 5: Solve for x
    x = 18,256,403,486.97/153,927.54
  6. Step 6: Final answer
    x = 118,603.88

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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.