Home / 98,611.48-136,050.60-56,139.94

Finding the Fourth Proportional to 98,611.48, 136,050.60 and 56,139.94

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Solution

The fourth proportional to 98,611.48, 136,050.60 and 56,139.94 is: 77,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,611.48 : 136,050.60 = 56,139.94 : x
  2. Step 2: Convert to fraction form
    98,611.48/136,050.60 = 56,139.94/x
  3. Step 3: Cross multiply
    98,611.48x = 136,050.60 × 56,139.94
  4. Step 4: Simplify right side
    98,611.48x = 7,637,872,520.96
  5. Step 5: Solve for x
    x = 7,637,872,520.96/98,611.48
  6. Step 6: Final answer
    x = 77,454.19

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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.