Home / 153,980.32-212,639.60-145,594.08

Finding the Fourth Proportional to 153,980.32, 212,639.60 and 145,594.08

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Solution

The fourth proportional to 153,980.32, 212,639.60 and 145,594.08 is: 201,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,980.32 : 212,639.60 = 145,594.08 : x
  2. Step 2: Convert to fraction form
    153,980.32/212,639.60 = 145,594.08/x
  3. Step 3: Cross multiply
    153,980.32x = 212,639.60 × 145,594.08
  4. Step 4: Simplify right side
    153,980.32x = 30,959,066,933.57
  5. Step 5: Solve for x
    x = 30,959,066,933.57/153,980.32
  6. Step 6: Final answer
    x = 201,058.60

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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.