Home / 109,518.25-164,277.38-42,989.71

Finding the Fourth Proportional to 109,518.25, 164,277.38 and 42,989.71

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Solution

The fourth proportional to 109,518.25, 164,277.38 and 42,989.71 is: 64,484.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,518.25 : 164,277.38 = 42,989.71 : x
  2. Step 2: Convert to fraction form
    109,518.25/164,277.38 = 42,989.71/x
  3. Step 3: Cross multiply
    109,518.25x = 164,277.38 × 42,989.71
  4. Step 4: Simplify right side
    109,518.25x = 7,062,236,925.76
  5. Step 5: Solve for x
    x = 7,062,236,925.76/109,518.25
  6. Step 6: Final answer
    x = 64,484.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.