Home / 110,428.15-152,352.01-72,210.05

Finding the Fourth Proportional to 110,428.15, 152,352.01 and 72,210.05

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Solution

The fourth proportional to 110,428.15, 152,352.01 and 72,210.05 is: 99,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,428.15 : 152,352.01 = 72,210.05 : x
  2. Step 2: Convert to fraction form
    110,428.15/152,352.01 = 72,210.05/x
  3. Step 3: Cross multiply
    110,428.15x = 152,352.01 × 72,210.05
  4. Step 4: Simplify right side
    110,428.15x = 11,001,346,460.06
  5. Step 5: Solve for x
    x = 11,001,346,460.06/110,428.15
  6. Step 6: Final answer
    x = 99,624.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.