Home / 111,756.65-154,246.07-64,041.98

Finding the Fourth Proportional to 111,756.65, 154,246.07 and 64,041.98

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Solution

The fourth proportional to 111,756.65, 154,246.07 and 64,041.98 is: 88,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,756.65 : 154,246.07 = 64,041.98 : x
  2. Step 2: Convert to fraction form
    111,756.65/154,246.07 = 64,041.98/x
  3. Step 3: Cross multiply
    111,756.65x = 154,246.07 × 64,041.98
  4. Step 4: Simplify right side
    111,756.65x = 9,878,223,118.89
  5. Step 5: Solve for x
    x = 9,878,223,118.89/111,756.65
  6. Step 6: Final answer
    x = 88,390.48

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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.