Home / 147,436.47-221,152.88-103,980.44

Finding the Fourth Proportional to 147,436.47, 221,152.88 and 103,980.44

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Solution

The fourth proportional to 147,436.47, 221,152.88 and 103,980.44 is: 155,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,436.47 : 221,152.88 = 103,980.44 : x
  2. Step 2: Convert to fraction form
    147,436.47/221,152.88 = 103,980.44/x
  3. Step 3: Cross multiply
    147,436.47x = 221,152.88 × 103,980.44
  4. Step 4: Simplify right side
    147,436.47x = 22,995,574,582.50
  5. Step 5: Solve for x
    x = 22,995,574,582.50/147,436.47
  6. Step 6: Final answer
    x = 155,969.38

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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.