Home / 135,790.40-187,482.12-103,902.32

Finding the Fourth Proportional to 135,790.40, 187,482.12 and 103,902.32

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Solution

The fourth proportional to 135,790.40, 187,482.12 and 103,902.32 is: 143,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,790.40 : 187,482.12 = 103,902.32 : x
  2. Step 2: Convert to fraction form
    135,790.40/187,482.12 = 103,902.32/x
  3. Step 3: Cross multiply
    135,790.40x = 187,482.12 × 103,902.32
  4. Step 4: Simplify right side
    135,790.40x = 19,479,827,226.52
  5. Step 5: Solve for x
    x = 19,479,827,226.52/135,790.40
  6. Step 6: Final answer
    x = 143,455.11

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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.