Home / 145,746.98-218,126.66-89,622.63

Finding the Fourth Proportional to 145,746.98, 218,126.66 and 89,622.63

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Solution

The fourth proportional to 145,746.98, 218,126.66 and 89,622.63 is: 134,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,746.98 : 218,126.66 = 89,622.63 : x
  2. Step 2: Convert to fraction form
    145,746.98/218,126.66 = 89,622.63/x
  3. Step 3: Cross multiply
    145,746.98x = 218,126.66 × 89,622.63
  4. Step 4: Simplify right side
    145,746.98x = 19,549,085,263.58
  5. Step 5: Solve for x
    x = 19,549,085,263.58/145,746.98
  6. Step 6: Final answer
    x = 134,130.30

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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.