Home / 112,653.92-155,460.06-61,665.40

Finding the Fourth Proportional to 112,653.92, 155,460.06 and 61,665.40

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Solution

The fourth proportional to 112,653.92, 155,460.06 and 61,665.40 is: 85,096.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,653.92 : 155,460.06 = 61,665.40 : x
  2. Step 2: Convert to fraction form
    112,653.92/155,460.06 = 61,665.40/x
  3. Step 3: Cross multiply
    112,653.92x = 155,460.06 × 61,665.40
  4. Step 4: Simplify right side
    112,653.92x = 9,586,506,783.92
  5. Step 5: Solve for x
    x = 9,586,506,783.92/112,653.92
  6. Step 6: Final answer
    x = 85,096.97

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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.