Home / 111,861.35-154,368.61-61,560.35

Finding the Fourth Proportional to 111,861.35, 154,368.61 and 61,560.35

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Solution

The fourth proportional to 111,861.35, 154,368.61 and 61,560.35 is: 84,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,861.35 : 154,368.61 = 61,560.35 : x
  2. Step 2: Convert to fraction form
    111,861.35/154,368.61 = 61,560.35/x
  3. Step 3: Cross multiply
    111,861.35x = 154,368.61 × 61,560.35
  4. Step 4: Simplify right side
    111,861.35x = 9,502,985,660.61
  5. Step 5: Solve for x
    x = 9,502,985,660.61/111,861.35
  6. Step 6: Final answer
    x = 84,953.25

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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.