Home / 98,726.77-136,199.66-57,870.18

Finding the Fourth Proportional to 98,726.77, 136,199.66 and 57,870.18

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Solution

The fourth proportional to 98,726.77, 136,199.66 and 57,870.18 is: 79,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,726.77 : 136,199.66 = 57,870.18 : x
  2. Step 2: Convert to fraction form
    98,726.77/136,199.66 = 57,870.18/x
  3. Step 3: Cross multiply
    98,726.77x = 136,199.66 × 57,870.18
  4. Step 4: Simplify right side
    98,726.77x = 7,881,898,840.14
  5. Step 5: Solve for x
    x = 7,881,898,840.14/98,726.77
  6. Step 6: Final answer
    x = 79,835.48

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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.