Home / 107,220.61-147,961.59-61,897.06

Finding the Fourth Proportional to 107,220.61, 147,961.59 and 61,897.06

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Solution

The fourth proportional to 107,220.61, 147,961.59 and 61,897.06 is: 85,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,220.61 : 147,961.59 = 61,897.06 : x
  2. Step 2: Convert to fraction form
    107,220.61/147,961.59 = 61,897.06/x
  3. Step 3: Cross multiply
    107,220.61x = 147,961.59 × 61,897.06
  4. Step 4: Simplify right side
    107,220.61x = 9,158,387,783.83
  5. Step 5: Solve for x
    x = 9,158,387,783.83/107,220.61
  6. Step 6: Final answer
    x = 85,416.30

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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.