Home / 112,316.76-154,985.40-64,576.98

Finding the Fourth Proportional to 112,316.76, 154,985.40 and 64,576.98

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Solution

The fourth proportional to 112,316.76, 154,985.40 and 64,576.98 is: 89,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,316.76 : 154,985.40 = 64,576.98 : x
  2. Step 2: Convert to fraction form
    112,316.76/154,985.40 = 64,576.98/x
  3. Step 3: Cross multiply
    112,316.76x = 154,985.40 × 64,576.98
  4. Step 4: Simplify right side
    112,316.76x = 10,008,489,076.09
  5. Step 5: Solve for x
    x = 10,008,489,076.09/112,316.76
  6. Step 6: Final answer
    x = 89,109.49

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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.