Home / 145,173.52-200,337.96-81,509.84

Finding the Fourth Proportional to 145,173.52, 200,337.96 and 81,509.84

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Solution

The fourth proportional to 145,173.52, 200,337.96 and 81,509.84 is: 112,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,173.52 : 200,337.96 = 81,509.84 : x
  2. Step 2: Convert to fraction form
    145,173.52/200,337.96 = 81,509.84/x
  3. Step 3: Cross multiply
    145,173.52x = 200,337.96 × 81,509.84
  4. Step 4: Simplify right side
    145,173.52x = 16,329,515,065.53
  5. Step 5: Solve for x
    x = 16,329,515,065.53/145,173.52
  6. Step 6: Final answer
    x = 112,482.74

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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.