Home / 98,647.13-147,911.54-47,946.30

Finding the Fourth Proportional to 98,647.13, 147,911.54 and 47,946.30

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Solution

The fourth proportional to 98,647.13, 147,911.54 and 47,946.30 is: 71,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,647.13 : 147,911.54 = 47,946.30 : x
  2. Step 2: Convert to fraction form
    98,647.13/147,911.54 = 47,946.30/x
  3. Step 3: Cross multiply
    98,647.13x = 147,911.54 × 47,946.30
  4. Step 4: Simplify right side
    98,647.13x = 7,091,811,070.30
  5. Step 5: Solve for x
    x = 7,091,811,070.30/98,647.13
  6. Step 6: Final answer
    x = 71,890.70

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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.