Home / 115,225.04-158,920.42-74,951.67

Finding the Fourth Proportional to 115,225.04, 158,920.42 and 74,951.67

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Solution

The fourth proportional to 115,225.04, 158,920.42 and 74,951.67 is: 103,374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,225.04 : 158,920.42 = 74,951.67 : x
  2. Step 2: Convert to fraction form
    115,225.04/158,920.42 = 74,951.67/x
  3. Step 3: Cross multiply
    115,225.04x = 158,920.42 × 74,951.67
  4. Step 4: Simplify right side
    115,225.04x = 11,911,350,501.34
  5. Step 5: Solve for x
    x = 11,911,350,501.34/115,225.04
  6. Step 6: Final answer
    x = 103,374.67

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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.