Home / 112,639.50-155,477.16-64,924.74

Finding the Fourth Proportional to 112,639.50, 155,477.16 and 64,924.74

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Solution

The fourth proportional to 112,639.50, 155,477.16 and 64,924.74 is: 89,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,639.50 : 155,477.16 = 64,924.74 : x
  2. Step 2: Convert to fraction form
    112,639.50/155,477.16 = 64,924.74/x
  3. Step 3: Cross multiply
    112,639.50x = 155,477.16 × 64,924.74
  4. Step 4: Simplify right side
    112,639.50x = 10,094,314,188.94
  5. Step 5: Solve for x
    x = 10,094,314,188.94/112,639.50
  6. Step 6: Final answer
    x = 89,616.11

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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.