Home / 98,726.22-136,258.74-77,666.22

Finding the Fourth Proportional to 98,726.22, 136,258.74 and 77,666.22

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Solution

The fourth proportional to 98,726.22, 136,258.74 and 77,666.22 is: 107,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,726.22 : 136,258.74 = 77,666.22 : x
  2. Step 2: Convert to fraction form
    98,726.22/136,258.74 = 77,666.22/x
  3. Step 3: Cross multiply
    98,726.22x = 136,258.74 × 77,666.22
  4. Step 4: Simplify right side
    98,726.22x = 10,582,701,277.76
  5. Step 5: Solve for x
    x = 10,582,701,277.76/98,726.22
  6. Step 6: Final answer
    x = 107,192.41

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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.