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Finding the Fourth Proportional to 131,737.39, 197,626.74 and 42,970.40

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Solution

The fourth proportional to 131,737.39, 197,626.74 and 42,970.40 is: 64,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,737.39 : 197,626.74 = 42,970.40 : x
  2. Step 2: Convert to fraction form
    131,737.39/197,626.74 = 42,970.40/x
  3. Step 3: Cross multiply
    131,737.39x = 197,626.74 × 42,970.40
  4. Step 4: Simplify right side
    131,737.39x = 8,492,100,068.50
  5. Step 5: Solve for x
    x = 8,492,100,068.50/131,737.39
  6. Step 6: Final answer
    x = 64,462.34

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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.