Home / 105,330.08-157,995.28-42,178.64

Finding the Fourth Proportional to 105,330.08, 157,995.28 and 42,178.64

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Solution

The fourth proportional to 105,330.08, 157,995.28 and 42,178.64 is: 63,268.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,330.08 : 157,995.28 = 42,178.64 : x
  2. Step 2: Convert to fraction form
    105,330.08/157,995.28 = 42,178.64/x
  3. Step 3: Cross multiply
    105,330.08x = 157,995.28 × 42,178.64
  4. Step 4: Simplify right side
    105,330.08x = 6,664,026,036.82
  5. Step 5: Solve for x
    x = 6,664,026,036.82/105,330.08
  6. Step 6: Final answer
    x = 63,268.02

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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.