Home / 142,018.04-213,038.91-40,816.44

Finding the Fourth Proportional to 142,018.04, 213,038.91 and 40,816.44

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Solution

The fourth proportional to 142,018.04, 213,038.91 and 40,816.44 is: 61,228.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,018.04 : 213,038.91 = 40,816.44 : x
  2. Step 2: Convert to fraction form
    142,018.04/213,038.91 = 40,816.44/x
  3. Step 3: Cross multiply
    142,018.04x = 213,038.91 × 40,816.44
  4. Step 4: Simplify right side
    142,018.04x = 8,695,489,887.68
  5. Step 5: Solve for x
    x = 8,695,489,887.68/142,018.04
  6. Step 6: Final answer
    x = 61,228.06

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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.