Home / 153,890.44-212,464.86-118,011.40

Finding the Fourth Proportional to 153,890.44, 212,464.86 and 118,011.40

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Solution

The fourth proportional to 153,890.44, 212,464.86 and 118,011.40 is: 162,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,890.44 : 212,464.86 = 118,011.40 : x
  2. Step 2: Convert to fraction form
    153,890.44/212,464.86 = 118,011.40/x
  3. Step 3: Cross multiply
    153,890.44x = 212,464.86 × 118,011.40
  4. Step 4: Simplify right side
    153,890.44x = 25,073,275,579.40
  5. Step 5: Solve for x
    x = 25,073,275,579.40/153,890.44
  6. Step 6: Final answer
    x = 162,929.39

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1.5x scale

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.