Home / 143,325.10-214,987.65-72,466.30

Finding the Fourth Proportional to 143,325.10, 214,987.65 and 72,466.30

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Solution

The fourth proportional to 143,325.10, 214,987.65 and 72,466.30 is: 108,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,325.10 : 214,987.65 = 72,466.30 : x
  2. Step 2: Convert to fraction form
    143,325.10/214,987.65 = 72,466.30/x
  3. Step 3: Cross multiply
    143,325.10x = 214,987.65 × 72,466.30
  4. Step 4: Simplify right side
    143,325.10x = 15,579,359,541.20
  5. Step 5: Solve for x
    x = 15,579,359,541.20/143,325.10
  6. Step 6: Final answer
    x = 108,699.45

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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.