Home / 98,442.16-135,802.89-64,435.66

Finding the Fourth Proportional to 98,442.16, 135,802.89 and 64,435.66

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Solution

The fourth proportional to 98,442.16, 135,802.89 and 64,435.66 is: 88,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,442.16 : 135,802.89 = 64,435.66 : x
  2. Step 2: Convert to fraction form
    98,442.16/135,802.89 = 64,435.66/x
  3. Step 3: Cross multiply
    98,442.16x = 135,802.89 × 64,435.66
  4. Step 4: Simplify right side
    98,442.16x = 8,750,548,847.06
  5. Step 5: Solve for x
    x = 8,750,548,847.06/98,442.16
  6. Step 6: Final answer
    x = 88,890.26

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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.