Home / 145,045.09-217,530.73-45,186.67

Finding the Fourth Proportional to 145,045.09, 217,530.73 and 45,186.67

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Solution

The fourth proportional to 145,045.09, 217,530.73 and 45,186.67 is: 67,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,045.09 : 217,530.73 = 45,186.67 : x
  2. Step 2: Convert to fraction form
    145,045.09/217,530.73 = 45,186.67/x
  3. Step 3: Cross multiply
    145,045.09x = 217,530.73 × 45,186.67
  4. Step 4: Simplify right side
    145,045.09x = 9,829,489,639.77
  5. Step 5: Solve for x
    x = 9,829,489,639.77/145,045.09
  6. Step 6: Final answer
    x = 67,768.51

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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.