Home / 103,572,141.20-155,358,211.80-43,105,965.20

Finding the Fourth Proportional to 103,572,141.20, 155,358,211.80 and 43,105,965.20

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Solution

The fourth proportional to 103,572,141.20, 155,358,211.80 and 43,105,965.20 is: 64,658,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,572,141.20 : 155,358,211.80 = 43,105,965.20 : x
  2. Step 2: Convert to fraction form
    103,572,141.20/155,358,211.80 = 43,105,965.20/x
  3. Step 3: Cross multiply
    103,572,141.20x = 155,358,211.80 × 43,105,965.20
  4. Step 4: Simplify right side
    103,572,141.20x = 6,696,865,671,385,030
  5. Step 5: Solve for x
    x = 6,696,865,671,385,030/103,572,141.20
  6. Step 6: Final answer
    x = 64,658,947.80

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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.