Home / 145,353.52-217,713.72-70,315.36

Finding the Fourth Proportional to 145,353.52, 217,713.72 and 70,315.36

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Solution

The fourth proportional to 145,353.52, 217,713.72 and 70,315.36 is: 105,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,353.52 : 217,713.72 = 70,315.36 : x
  2. Step 2: Convert to fraction form
    145,353.52/217,713.72 = 70,315.36/x
  3. Step 3: Cross multiply
    145,353.52x = 217,713.72 × 70,315.36
  4. Step 4: Simplify right side
    145,353.52x = 15,308,618,598.74
  5. Step 5: Solve for x
    x = 15,308,618,598.74/145,353.52
  6. Step 6: Final answer
    x = 105,319.90

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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.