Home / 113,447.48-156,554.84-63,145.40

Finding the Fourth Proportional to 113,447.48, 156,554.84 and 63,145.40

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Solution

The fourth proportional to 113,447.48, 156,554.84 and 63,145.40 is: 87,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,447.48 : 156,554.84 = 63,145.40 : x
  2. Step 2: Convert to fraction form
    113,447.48/156,554.84 = 63,145.40/x
  3. Step 3: Cross multiply
    113,447.48x = 156,554.84 × 63,145.40
  4. Step 4: Simplify right side
    113,447.48x = 9,885,717,993.74
  5. Step 5: Solve for x
    x = 9,885,717,993.74/113,447.48
  6. Step 6: Final answer
    x = 87,139.16

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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.