Home / 109,647.16-151,312.62-61,899.96

Finding the Fourth Proportional to 109,647.16, 151,312.62 and 61,899.96

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Solution

The fourth proportional to 109,647.16, 151,312.62 and 61,899.96 is: 85,421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,647.16 : 151,312.62 = 61,899.96 : x
  2. Step 2: Convert to fraction form
    109,647.16/151,312.62 = 61,899.96/x
  3. Step 3: Cross multiply
    109,647.16x = 151,312.62 × 61,899.96
  4. Step 4: Simplify right side
    109,647.16x = 9,366,245,125.50
  5. Step 5: Solve for x
    x = 9,366,245,125.50/109,647.16
  6. Step 6: Final answer
    x = 85,421.68

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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.