Home / 145,427.70-218,141.61-45,595.67

Finding the Fourth Proportional to 145,427.70, 218,141.61 and 45,595.67

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Solution

The fourth proportional to 145,427.70, 218,141.61 and 45,595.67 is: 68,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,427.70 : 218,141.61 = 45,595.67 : x
  2. Step 2: Convert to fraction form
    145,427.70/218,141.61 = 45,595.67/x
  3. Step 3: Cross multiply
    145,427.70x = 218,141.61 × 45,595.67
  4. Step 4: Simplify right side
    145,427.70x = 9,946,312,862.83
  5. Step 5: Solve for x
    x = 9,946,312,862.83/145,427.70
  6. Step 6: Final answer
    x = 68,393.52

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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.