Home / 103,638.20-155,457.30-95,473.40

Finding the Fourth Proportional to 103,638.20, 155,457.30 and 95,473.40

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Solution

The fourth proportional to 103,638.20, 155,457.30 and 95,473.40 is: 143,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.20 : 155,457.30 = 95,473.40 : x
  2. Step 2: Convert to fraction form
    103,638.20/155,457.30 = 95,473.40/x
  3. Step 3: Cross multiply
    103,638.20x = 155,457.30 × 95,473.40
  4. Step 4: Simplify right side
    103,638.20x = 14,842,036,985.82
  5. Step 5: Solve for x
    x = 14,842,036,985.82/103,638.20
  6. Step 6: Final answer
    x = 143,210.10

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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.