Home / 112,108.04-154,708.07-61,807.04

Finding the Fourth Proportional to 112,108.04, 154,708.07 and 61,807.04

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Solution

The fourth proportional to 112,108.04, 154,708.07 and 61,807.04 is: 85,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,108.04 : 154,708.07 = 61,807.04 : x
  2. Step 2: Convert to fraction form
    112,108.04/154,708.07 = 61,807.04/x
  3. Step 3: Cross multiply
    112,108.04x = 154,708.07 × 61,807.04
  4. Step 4: Simplify right side
    112,108.04x = 9,562,047,870.81
  5. Step 5: Solve for x
    x = 9,562,047,870.81/112,108.04
  6. Step 6: Final answer
    x = 85,293.15

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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.