Home / 118,070.06-177,017.60-71,312.00

Finding the Fourth Proportional to 118,070.06, 177,017.60 and 71,312.00

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Solution

The fourth proportional to 118,070.06, 177,017.60 and 71,312.00 is: 106,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,070.06 : 177,017.60 = 71,312.00 : x
  2. Step 2: Convert to fraction form
    118,070.06/177,017.60 = 71,312.00/x
  3. Step 3: Cross multiply
    118,070.06x = 177,017.60 × 71,312.00
  4. Step 4: Simplify right side
    118,070.06x = 12,623,478,384.39
  5. Step 5: Solve for x
    x = 12,623,478,384.39/118,070.06
  6. Step 6: Final answer
    x = 106,915.16

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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.