Home / 145,146.68-200,300.66-81,482.84

Finding the Fourth Proportional to 145,146.68, 200,300.66 and 81,482.84

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Solution

The fourth proportional to 145,146.68, 200,300.66 and 81,482.84 is: 112,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,146.68 : 200,300.66 = 81,482.84 : x
  2. Step 2: Convert to fraction form
    145,146.68/200,300.66 = 81,482.84/x
  3. Step 3: Cross multiply
    145,146.68x = 200,300.66 × 81,482.84
  4. Step 4: Simplify right side
    145,146.68x = 16,321,066,630.67
  5. Step 5: Solve for x
    x = 16,321,066,630.67/145,146.68
  6. Step 6: Final answer
    x = 112,445.33

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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.