Home / 188,657.16-260,345.52-103,772.40

Finding the Fourth Proportional to 188,657.16, 260,345.52 and 103,772.40

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Solution

The fourth proportional to 188,657.16, 260,345.52 and 103,772.40 is: 143,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,657.16 : 260,345.52 = 103,772.40 : x
  2. Step 2: Convert to fraction form
    188,657.16/260,345.52 = 103,772.40/x
  3. Step 3: Cross multiply
    188,657.16x = 260,345.52 × 103,772.40
  4. Step 4: Simplify right side
    188,657.16x = 27,016,679,439.65
  5. Step 5: Solve for x
    x = 27,016,679,439.65/188,657.16
  6. Step 6: Final answer
    x = 143,205.16

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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.