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Finding the Fourth Proportional to 103,352.70, 155,029.05 and 101,970.30

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Solution

The fourth proportional to 103,352.70, 155,029.05 and 101,970.30 is: 152,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,352.70 : 155,029.05 = 101,970.30 : x
  2. Step 2: Convert to fraction form
    103,352.70/155,029.05 = 101,970.30/x
  3. Step 3: Cross multiply
    103,352.70x = 155,029.05 × 101,970.30
  4. Step 4: Simplify right side
    103,352.70x = 15,808,358,737.22
  5. Step 5: Solve for x
    x = 15,808,358,737.22/103,352.70
  6. Step 6: Final answer
    x = 152,955.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.