Home / 103,220.02-154,830.28-28,341.20

Finding the Fourth Proportional to 103,220.02, 154,830.28 and 28,341.20

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Solution

The fourth proportional to 103,220.02, 154,830.28 and 28,341.20 is: 42,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,220.02 : 154,830.28 = 28,341.20 : x
  2. Step 2: Convert to fraction form
    103,220.02/154,830.28 = 28,341.20/x
  3. Step 3: Cross multiply
    103,220.02x = 154,830.28 × 28,341.20
  4. Step 4: Simplify right side
    103,220.02x = 4,388,075,931.54
  5. Step 5: Solve for x
    x = 4,388,075,931.54/103,220.02
  6. Step 6: Final answer
    x = 42,511.87

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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.