Home / 145,357.23-200,603.76-80,838.15

Finding the Fourth Proportional to 145,357.23, 200,603.76 and 80,838.15

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Solution

The fourth proportional to 145,357.23, 200,603.76 and 80,838.15 is: 111,562.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,357.23 : 200,603.76 = 80,838.15 : x
  2. Step 2: Convert to fraction form
    145,357.23/200,603.76 = 80,838.15/x
  3. Step 3: Cross multiply
    145,357.23x = 200,603.76 × 80,838.15
  4. Step 4: Simplify right side
    145,357.23x = 16,216,436,841.44
  5. Step 5: Solve for x
    x = 16,216,436,841.44/145,357.23
  6. Step 6: Final answer
    x = 111,562.64

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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.