Home / 118,172.23-163,290.05-89,828.71

Finding the Fourth Proportional to 118,172.23, 163,290.05 and 89,828.71

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Solution

The fourth proportional to 118,172.23, 163,290.05 and 89,828.71 is: 124,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,172.23 : 163,290.05 = 89,828.71 : x
  2. Step 2: Convert to fraction form
    118,172.23/163,290.05 = 89,828.71/x
  3. Step 3: Cross multiply
    118,172.23x = 163,290.05 × 89,828.71
  4. Step 4: Simplify right side
    118,172.23x = 14,668,134,547.34
  5. Step 5: Solve for x
    x = 14,668,134,547.34/118,172.23
  6. Step 6: Final answer
    x = 124,125.05

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1.5x scale

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.