Home / 99,117.51-148,680.84-28,045.50

Finding the Fourth Proportional to 99,117.51, 148,680.84 and 28,045.50

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Solution

The fourth proportional to 99,117.51, 148,680.84 and 28,045.50 is: 42,069.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,117.51 : 148,680.84 = 28,045.50 : x
  2. Step 2: Convert to fraction form
    99,117.51/148,680.84 = 28,045.50/x
  3. Step 3: Cross multiply
    99,117.51x = 148,680.84 × 28,045.50
  4. Step 4: Simplify right side
    99,117.51x = 4,169,828,498.22
  5. Step 5: Solve for x
    x = 4,169,828,498.22/99,117.51
  6. Step 6: Final answer
    x = 42,069.54

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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.