Home / 112,141.35-154,749.25-61,154.18

Finding the Fourth Proportional to 112,141.35, 154,749.25 and 61,154.18

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Solution

The fourth proportional to 112,141.35, 154,749.25 and 61,154.18 is: 84,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,141.35 : 154,749.25 = 61,154.18 : x
  2. Step 2: Convert to fraction form
    112,141.35/154,749.25 = 61,154.18/x
  3. Step 3: Cross multiply
    112,141.35x = 154,749.25 × 61,154.18
  4. Step 4: Simplify right side
    112,141.35x = 9,463,563,489.37
  5. Step 5: Solve for x
    x = 9,463,563,489.37/112,141.35
  6. Step 6: Final answer
    x = 84,389.60

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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.