Home / 153,956.16-212,579.64-118,089.36

Finding the Fourth Proportional to 153,956.16, 212,579.64 and 118,089.36

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Solution

The fourth proportional to 153,956.16, 212,579.64 and 118,089.36 is: 163,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,956.16 : 212,579.64 = 118,089.36 : x
  2. Step 2: Convert to fraction form
    153,956.16/212,579.64 = 118,089.36/x
  3. Step 3: Cross multiply
    153,956.16x = 212,579.64 × 118,089.36
  4. Step 4: Simplify right side
    153,956.16x = 25,103,393,636.63
  5. Step 5: Solve for x
    x = 25,103,393,636.63/153,956.16
  6. Step 6: Final answer
    x = 163,055.47

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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.