Home / 98,071.43-135,293.63-64,070.87

Finding the Fourth Proportional to 98,071.43, 135,293.63 and 64,070.87

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Solution

The fourth proportional to 98,071.43, 135,293.63 and 64,070.87 is: 88,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,071.43 : 135,293.63 = 64,070.87 : x
  2. Step 2: Convert to fraction form
    98,071.43/135,293.63 = 64,070.87/x
  3. Step 3: Cross multiply
    98,071.43x = 135,293.63 × 64,070.87
  4. Step 4: Simplify right side
    98,071.43x = 8,668,379,582.74
  5. Step 5: Solve for x
    x = 8,668,379,582.74/98,071.43
  6. Step 6: Final answer
    x = 88,388.43

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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.