Home / 145,101.39-200,315.07-112,763.76

Finding the Fourth Proportional to 145,101.39, 200,315.07 and 112,763.76

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Solution

The fourth proportional to 145,101.39, 200,315.07 and 112,763.76 is: 155,672.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,101.39 : 200,315.07 = 112,763.76 : x
  2. Step 2: Convert to fraction form
    145,101.39/200,315.07 = 112,763.76/x
  3. Step 3: Cross multiply
    145,101.39x = 200,315.07 × 112,763.76
  4. Step 4: Simplify right side
    145,101.39x = 22,588,280,477.86
  5. Step 5: Solve for x
    x = 22,588,280,477.86/145,101.39
  6. Step 6: Final answer
    x = 155,672.39

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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.