Home / 98,726.82-136,199.74-57,870.24

Finding the Fourth Proportional to 98,726.82, 136,199.74 and 57,870.24

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Solution

The fourth proportional to 98,726.82, 136,199.74 and 57,870.24 is: 79,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,726.82 : 136,199.74 = 57,870.24 : x
  2. Step 2: Convert to fraction form
    98,726.82/136,199.74 = 57,870.24/x
  3. Step 3: Cross multiply
    98,726.82x = 136,199.74 × 57,870.24
  4. Step 4: Simplify right side
    98,726.82x = 7,881,911,641.74
  5. Step 5: Solve for x
    x = 7,881,911,641.74/98,726.82
  6. Step 6: Final answer
    x = 79,835.57

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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.