Home / 112,618.07-168,749.28-91,455.13

Finding the Fourth Proportional to 112,618.07, 168,749.28 and 91,455.13

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Solution

The fourth proportional to 112,618.07, 168,749.28 and 91,455.13 is: 137,038.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,618.07 : 168,749.28 = 91,455.13 : x
  2. Step 2: Convert to fraction form
    112,618.07/168,749.28 = 91,455.13/x
  3. Step 3: Cross multiply
    112,618.07x = 168,749.28 × 91,455.13
  4. Step 4: Simplify right side
    112,618.07x = 15,432,987,339.81
  5. Step 5: Solve for x
    x = 15,432,987,339.81/112,618.07
  6. Step 6: Final answer
    x = 137,038.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.