Home / 141,071.15-194,683.80-77,411.23

Finding the Fourth Proportional to 141,071.15, 194,683.80 and 77,411.23

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Solution

The fourth proportional to 141,071.15, 194,683.80 and 77,411.23 is: 106,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,071.15 : 194,683.80 = 77,411.23 : x
  2. Step 2: Convert to fraction form
    141,071.15/194,683.80 = 77,411.23/x
  3. Step 3: Cross multiply
    141,071.15x = 194,683.80 × 77,411.23
  4. Step 4: Simplify right side
    141,071.15x = 15,070,712,222.66
  5. Step 5: Solve for x
    x = 15,070,712,222.66/141,071.15
  6. Step 6: Final answer
    x = 106,830.57

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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.