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Finding the Fourth Proportional to 130,340.67, 179,870.04 and 70,724.67

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Solution

The fourth proportional to 130,340.67, 179,870.04 and 70,724.67 is: 97,600.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,340.67 : 179,870.04 = 70,724.67 : x
  2. Step 2: Convert to fraction form
    130,340.67/179,870.04 = 70,724.67/x
  3. Step 3: Cross multiply
    130,340.67x = 179,870.04 × 70,724.67
  4. Step 4: Simplify right side
    130,340.67x = 12,721,249,221.89
  5. Step 5: Solve for x
    x = 12,721,249,221.89/130,340.67
  6. Step 6: Final answer
    x = 97,600.00

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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.