Home / 102,004.90-153,007.35-101,421.70

Finding the Fourth Proportional to 102,004.90, 153,007.35 and 101,421.70

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Solution

The fourth proportional to 102,004.90, 153,007.35 and 101,421.70 is: 152,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,004.90 : 153,007.35 = 101,421.70 : x
  2. Step 2: Convert to fraction form
    102,004.90/153,007.35 = 101,421.70/x
  3. Step 3: Cross multiply
    102,004.90x = 153,007.35 × 101,421.70
  4. Step 4: Simplify right side
    102,004.90x = 15,518,265,549.50
  5. Step 5: Solve for x
    x = 15,518,265,549.50/102,004.90
  6. Step 6: Final answer
    x = 152,132.55

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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.