Home / 105,746.95-145,880.49-63,297.28

Finding the Fourth Proportional to 105,746.95, 145,880.49 and 63,297.28

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Solution

The fourth proportional to 105,746.95, 145,880.49 and 63,297.28 is: 87,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,746.95 : 145,880.49 = 63,297.28 : x
  2. Step 2: Convert to fraction form
    105,746.95/145,880.49 = 63,297.28/x
  3. Step 3: Cross multiply
    105,746.95x = 145,880.49 × 63,297.28
  4. Step 4: Simplify right side
    105,746.95x = 9,233,838,222.07
  5. Step 5: Solve for x
    x = 9,233,838,222.07/105,746.95
  6. Step 6: Final answer
    x = 87,320.14

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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.