Home / 142,646.85-213,970.07-42,806.88

Finding the Fourth Proportional to 142,646.85, 213,970.07 and 42,806.88

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Solution

The fourth proportional to 142,646.85, 213,970.07 and 42,806.88 is: 64,210.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,646.85 : 213,970.07 = 42,806.88 : x
  2. Step 2: Convert to fraction form
    142,646.85/213,970.07 = 42,806.88/x
  3. Step 3: Cross multiply
    142,646.85x = 213,970.07 × 42,806.88
  4. Step 4: Simplify right side
    142,646.85x = 9,159,391,110.08
  5. Step 5: Solve for x
    x = 9,159,391,110.08/142,646.85
  6. Step 6: Final answer
    x = 64,210.26

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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.