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Finding the Fourth Proportional to 101,501.60, 152,187.60 and 42,360.80

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Solution

The fourth proportional to 101,501.60, 152,187.60 and 42,360.80 is: 63,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,501.60 : 152,187.60 = 42,360.80 : x
  2. Step 2: Convert to fraction form
    101,501.60/152,187.60 = 42,360.80/x
  3. Step 3: Cross multiply
    101,501.60x = 152,187.60 × 42,360.80
  4. Step 4: Simplify right side
    101,501.60x = 6,446,788,486.08
  5. Step 5: Solve for x
    x = 6,446,788,486.08/101,501.60
  6. Step 6: Final answer
    x = 63,514.16

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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.