Home / 117,888.24-176,814.81-42,990.78

Finding the Fourth Proportional to 117,888.24, 176,814.81 and 42,990.78

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Solution

The fourth proportional to 117,888.24, 176,814.81 and 42,990.78 is: 64,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,888.24 : 176,814.81 = 42,990.78 : x
  2. Step 2: Convert to fraction form
    117,888.24/176,814.81 = 42,990.78/x
  3. Step 3: Cross multiply
    117,888.24x = 176,814.81 × 42,990.78
  4. Step 4: Simplify right side
    117,888.24x = 7,601,406,597.45
  5. Step 5: Solve for x
    x = 7,601,406,597.45/117,888.24
  6. Step 6: Final answer
    x = 64,479.77

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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.