Home / 147,345.12-221,012.64-42,164.16

Finding the Fourth Proportional to 147,345.12, 221,012.64 and 42,164.16

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Solution

The fourth proportional to 147,345.12, 221,012.64 and 42,164.16 is: 63,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,345.12 : 221,012.64 = 42,164.16 : x
  2. Step 2: Convert to fraction form
    147,345.12/221,012.64 = 42,164.16/x
  3. Step 3: Cross multiply
    147,345.12x = 221,012.64 × 42,164.16
  4. Step 4: Simplify right side
    147,345.12x = 9,318,812,314.98
  5. Step 5: Solve for x
    x = 9,318,812,314.98/147,345.12
  6. Step 6: Final answer
    x = 63,244.80

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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.