Home / 102,029.20-153,043.80-39,699.70

Finding the Fourth Proportional to 102,029.20, 153,043.80 and 39,699.70

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Solution

The fourth proportional to 102,029.20, 153,043.80 and 39,699.70 is: 59,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,029.20 : 153,043.80 = 39,699.70 : x
  2. Step 2: Convert to fraction form
    102,029.20/153,043.80 = 39,699.70/x
  3. Step 3: Cross multiply
    102,029.20x = 153,043.80 × 39,699.70
  4. Step 4: Simplify right side
    102,029.20x = 6,075,792,946.86
  5. Step 5: Solve for x
    x = 6,075,792,946.86/102,029.20
  6. Step 6: Final answer
    x = 59,549.55

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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.