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Finding the Fourth Proportional to 130,336.67, 179,864.52 and 70,720.67

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Solution

The fourth proportional to 130,336.67, 179,864.52 and 70,720.67 is: 97,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,336.67 : 179,864.52 = 70,720.67 : x
  2. Step 2: Convert to fraction form
    130,336.67/179,864.52 = 70,720.67/x
  3. Step 3: Cross multiply
    130,336.67x = 179,864.52 × 70,720.67
  4. Step 4: Simplify right side
    130,336.67x = 12,720,139,363.63
  5. Step 5: Solve for x
    x = 12,720,139,363.63/130,336.67
  6. Step 6: Final answer
    x = 97,594.48

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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.