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Finding the Fourth Proportional to 188,510.04, 260,147.10 and 103,630.68

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Solution

The fourth proportional to 188,510.04, 260,147.10 and 103,630.68 is: 143,012.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,510.04 : 260,147.10 = 103,630.68 : x
  2. Step 2: Convert to fraction form
    188,510.04/260,147.10 = 103,630.68/x
  3. Step 3: Cross multiply
    188,510.04x = 260,147.10 × 103,630.68
  4. Step 4: Simplify right side
    188,510.04x = 26,959,220,873.03
  5. Step 5: Solve for x
    x = 26,959,220,873.03/188,510.04
  6. Step 6: Final answer
    x = 143,012.12

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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.