Home / 142,421.39-213,566.30-52,441.50

Finding the Fourth Proportional to 142,421.39, 213,566.30 and 52,441.50

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Solution

The fourth proportional to 142,421.39, 213,566.30 and 52,441.50 is: 78,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,421.39 : 213,566.30 = 52,441.50 : x
  2. Step 2: Convert to fraction form
    142,421.39/213,566.30 = 52,441.50/x
  3. Step 3: Cross multiply
    142,421.39x = 213,566.30 × 52,441.50
  4. Step 4: Simplify right side
    142,421.39x = 11,199,736,859.24
  5. Step 5: Solve for x
    x = 11,199,736,859.24/142,421.39
  6. Step 6: Final answer
    x = 78,638.03

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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.