Home / 163,531.90-245,297.85-51,220.90

Finding the Fourth Proportional to 163,531.90, 245,297.85 and 51,220.90

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Solution

The fourth proportional to 163,531.90, 245,297.85 and 51,220.90 is: 76,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,531.90 : 245,297.85 = 51,220.90 : x
  2. Step 2: Convert to fraction form
    163,531.90/245,297.85 = 51,220.90/x
  3. Step 3: Cross multiply
    163,531.90x = 245,297.85 × 51,220.90
  4. Step 4: Simplify right side
    163,531.90x = 12,564,376,645.07
  5. Step 5: Solve for x
    x = 12,564,376,645.07/163,531.90
  6. Step 6: Final answer
    x = 76,831.35

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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.