Home / 102,645.32-141,643.47-56,702.93

Finding the Fourth Proportional to 102,645.32, 141,643.47 and 56,702.93

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Solution

The fourth proportional to 102,645.32, 141,643.47 and 56,702.93 is: 78,246.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,645.32 : 141,643.47 = 56,702.93 : x
  2. Step 2: Convert to fraction form
    102,645.32/141,643.47 = 56,702.93/x
  3. Step 3: Cross multiply
    102,645.32x = 141,643.47 × 56,702.93
  4. Step 4: Simplify right side
    102,645.32x = 8,031,599,056.15
  5. Step 5: Solve for x
    x = 8,031,599,056.15/102,645.32
  6. Step 6: Final answer
    x = 78,246.13

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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.