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Finding the Fourth Proportional to 145,482.69, 200,736.01 and 85,041.65

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Solution

The fourth proportional to 145,482.69, 200,736.01 and 85,041.65 is: 117,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,482.69 : 200,736.01 = 85,041.65 : x
  2. Step 2: Convert to fraction form
    145,482.69/200,736.01 = 85,041.65/x
  3. Step 3: Cross multiply
    145,482.69x = 200,736.01 × 85,041.65
  4. Step 4: Simplify right side
    145,482.69x = 17,070,920,288.53
  5. Step 5: Solve for x
    x = 17,070,920,288.53/145,482.69
  6. Step 6: Final answer
    x = 117,339.87

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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.