Home / 154,807.15-213,646.26-91,157.35

Finding the Fourth Proportional to 154,807.15, 213,646.26 and 91,157.35

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Solution

The fourth proportional to 154,807.15, 213,646.26 and 91,157.35 is: 125,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,807.15 : 213,646.26 = 91,157.35 : x
  2. Step 2: Convert to fraction form
    154,807.15/213,646.26 = 91,157.35/x
  3. Step 3: Cross multiply
    154,807.15x = 213,646.26 × 91,157.35
  4. Step 4: Simplify right side
    154,807.15x = 19,475,426,899.01
  5. Step 5: Solve for x
    x = 19,475,426,899.01/154,807.15
  6. Step 6: Final answer
    x = 125,804.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.