Home / 142,210.90-213,316.36-42,368.52

Finding the Fourth Proportional to 142,210.90, 213,316.36 and 42,368.52

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Solution

The fourth proportional to 142,210.90, 213,316.36 and 42,368.52 is: 63,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,210.90 : 213,316.36 = 42,368.52 : x
  2. Step 2: Convert to fraction form
    142,210.90/213,316.36 = 42,368.52/x
  3. Step 3: Cross multiply
    142,210.90x = 213,316.36 × 42,368.52
  4. Step 4: Simplify right side
    142,210.90x = 9,037,898,464.99
  5. Step 5: Solve for x
    x = 9,037,898,464.99/142,210.90
  6. Step 6: Final answer
    x = 63,552.78

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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.