Home / 99,106.19-148,681.98-42,955.70

Finding the Fourth Proportional to 99,106.19, 148,681.98 and 42,955.70

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Solution

The fourth proportional to 99,106.19, 148,681.98 and 42,955.70 is: 64,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,106.19 : 148,681.98 = 42,955.70 : x
  2. Step 2: Convert to fraction form
    99,106.19/148,681.98 = 42,955.70/x
  3. Step 3: Cross multiply
    99,106.19x = 148,681.98 × 42,955.70
  4. Step 4: Simplify right side
    99,106.19x = 6,386,738,528.29
  5. Step 5: Solve for x
    x = 6,386,738,528.29/99,106.19
  6. Step 6: Final answer
    x = 64,443.39

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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.