Home / 102,405.22-141,314.70-57,088.18

Finding the Fourth Proportional to 102,405.22, 141,314.70 and 57,088.18

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Solution

The fourth proportional to 102,405.22, 141,314.70 and 57,088.18 is: 78,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,405.22 : 141,314.70 = 57,088.18 : x
  2. Step 2: Convert to fraction form
    102,405.22/141,314.70 = 57,088.18/x
  3. Step 3: Cross multiply
    102,405.22x = 141,314.70 × 57,088.18
  4. Step 4: Simplify right side
    102,405.22x = 8,067,399,030.25
  5. Step 5: Solve for x
    x = 8,067,399,030.25/102,405.22
  6. Step 6: Final answer
    x = 78,779.18

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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.