Home / 112,727.84-155,555.28-64,949.12

Finding the Fourth Proportional to 112,727.84, 155,555.28 and 64,949.12

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Solution

The fourth proportional to 112,727.84, 155,555.28 and 64,949.12 is: 89,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,727.84 : 155,555.28 = 64,949.12 : x
  2. Step 2: Convert to fraction form
    112,727.84/155,555.28 = 64,949.12/x
  3. Step 3: Cross multiply
    112,727.84x = 155,555.28 × 64,949.12
  4. Step 4: Simplify right side
    112,727.84x = 10,103,178,547.35
  5. Step 5: Solve for x
    x = 10,103,178,547.35/112,727.84
  6. Step 6: Final answer
    x = 89,624.52

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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.