Home / 158,222.46-218,345.15-85,623.67

Finding the Fourth Proportional to 158,222.46, 218,345.15 and 85,623.67

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Solution

The fourth proportional to 158,222.46, 218,345.15 and 85,623.67 is: 118,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,222.46 : 218,345.15 = 85,623.67 : x
  2. Step 2: Convert to fraction form
    158,222.46/218,345.15 = 85,623.67/x
  3. Step 3: Cross multiply
    158,222.46x = 218,345.15 × 85,623.67
  4. Step 4: Simplify right side
    158,222.46x = 18,695,513,069.70
  5. Step 5: Solve for x
    x = 18,695,513,069.70/158,222.46
  6. Step 6: Final answer
    x = 118,159.67

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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.