Home / 113,448.08-156,556.80-63,147.12

Finding the Fourth Proportional to 113,448.08, 156,556.80 and 63,147.12

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Solution

The fourth proportional to 113,448.08, 156,556.80 and 63,147.12 is: 87,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,448.08 : 156,556.80 = 63,147.12 : x
  2. Step 2: Convert to fraction form
    113,448.08/156,556.80 = 63,147.12/x
  3. Step 3: Cross multiply
    113,448.08x = 156,556.80 × 63,147.12
  4. Step 4: Simplify right side
    113,448.08x = 9,886,111,036.42
  5. Step 5: Solve for x
    x = 9,886,111,036.42/113,448.08
  6. Step 6: Final answer
    x = 87,142.16

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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.