Home / 107,011.04-147,676.79-61,688.20

Finding the Fourth Proportional to 107,011.04, 147,676.79 and 61,688.20

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Solution

The fourth proportional to 107,011.04, 147,676.79 and 61,688.20 is: 85,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,011.04 : 147,676.79 = 61,688.20 : x
  2. Step 2: Convert to fraction form
    107,011.04/147,676.79 = 61,688.20/x
  3. Step 3: Cross multiply
    107,011.04x = 147,676.79 × 61,688.20
  4. Step 4: Simplify right side
    107,011.04x = 9,109,914,679.25
  5. Step 5: Solve for x
    x = 9,109,914,679.25/107,011.04
  6. Step 6: Final answer
    x = 85,130.60

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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.