Home / 112,145.60-154,762.80-61,158.62

Finding the Fourth Proportional to 112,145.60, 154,762.80 and 61,158.62

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Solution

The fourth proportional to 112,145.60, 154,762.80 and 61,158.62 is: 84,399.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,145.60 : 154,762.80 = 61,158.62 : x
  2. Step 2: Convert to fraction form
    112,145.60/154,762.80 = 61,158.62/x
  3. Step 3: Cross multiply
    112,145.60x = 154,762.80 × 61,158.62
  4. Step 4: Simplify right side
    112,145.60x = 9,465,079,275.34
  5. Step 5: Solve for x
    x = 9,465,079,275.34/112,145.60
  6. Step 6: Final answer
    x = 84,399.92

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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.